In 1965, he was given a minor role in the pilot episode of Hogan's Heroes. After two other actors had backed out of the series after it was picked up, Larry became a permanent member of the cast as the demolition man, Sergeant Andrew Carter. While appearing on that popular series, Hovis wrote the 1966film spy-spoof, Out of Sight. He also wrote for and appeared in Rowan & Martin's Laugh-In.